News
Artemis II makes its Closest Approach to the Moon
Artemis II Launches on the First Crewed Mission to the Moon since 1972!
Week 28, 2025: Newly-discovered Comet is the Third Interstellar Object Ever Known!
Week 26, 2025: The Vera C. Rubin Observatory in Chile Releases its First Light Images!
Week 17, 2025: Hubble Celebrates 35 Years in Orbit This Month!
Week 41, 2024: Two Comets Might Become the Brightest Seen from Earth since 1965!
Week 35, 2024: Japan's First Lunar Lander Officially Ends its Historic Mission
Week 34, 2024: Jupiter-bound Spacecraft flies by the Earth and the Moon (August 19–20, 2024)
Week 19, 2024: Massive Solar Storm Hits Earth on May 10, 2024
Celestia on Social Media and Celestia PLUS
Week 35, 2023: India Becomes Fourth Nation to Land on the Moon
Week 15, 2023: Europe's First Mission to Jupiter Successfully Launches!
Week 14, 2023: The Crew of Artemis 2 is Officially Announced!
Celestia 1.5.20 and Celestia for Xbox
Week 12, 2023: Newest Add-ons of the Month
Disclaimer Regarding Star-Naming Services and Celestia App
Week 6, 2023: Newest Add-ons of the Week
Week 5, 2023: Comet C/2022 E3 (ZTF) makes its Closest Approach to Earth in 50,000 Years!
Week 3, 2023: Newest Add-ons of the Week
Week 2, 2023: Soyuz MS-23 to Launch Uncrewed, Extending ISS Expedition to a Full Year
Week 1, 2023: Newest Add-ons of the Week
Week 52, 2022: The Official Project Sisyphus Trailer
Week 51, 2022: Newest Addons of the Month
Week 50, 2022: The Crew of the DearMoon Project is Officially Announced!
Week 46, 2022: Artemis 1 Successfully Launches to the Moon on Maiden Flight of the SLS Rocket!
Week 43, 2022: Ed Stone Retires as Voyager's Project Scientist after 50 Years
Week 42, 2022: Newest Addons of the Month
Week 40, 2022: India's First Mission to Mars Officially Ended
Week 39, 2022: The DART mission Successfully Crashes onto Dimorphos!
Week 37, 2022: Newest Addons of the Week
What's new in Mobile Celestia 1.5.11
Week 33, 2022: NameExoWorlds 2022 has been Announced!
Week 32, 2022: Newest Addons of the Week
Week 30, 2022: Wentian Module Launches and Arrives at Tiangong